Phone numbers in Middletown, Delaware
Middletown has 17 phone prefixes in area code 302.
Biggest holders: Verizon (local phone), AT&T Mobility, Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 29%
- Local phone company 24%
- Internet / business phone carrier 47%
Every prefix in Middletown
Search the first six digits of a number in this list. If it's here, the number started in Middletown with the carrier shown. If it isn't, check the Delaware page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 302-203 | Verizon (local phone) | Local phone company | 2012 |
| 302-279 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 302-285 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 302-312 | T-Mobile (including Sprint) | Mobile carrier | – |
| 302-314 | Bandwidth | Internet / business phone carrier | – |
| 302-373 | AT&T Mobility | Mobile carrier | – |
| 302-376 | Verizon (local phone) | Local phone company | – |
| 302-378 | Verizon (local phone) | Local phone company | – |
| 302-437 | AT&T Mobility | Mobile carrier | – |
| 302-449 | Verizon (local phone) | Local phone company | – |
| 302-464 | Idt America | Internet / business phone carrier | 2006 |
| 302-534 | Onvoy | Internet / business phone carrier | 2024 |
| 302-563 | AT&T Mobility | Mobile carrier | – |
| 302-676 | Onvoy | Internet / business phone carrier | 2020 |
| 302-696 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 302-717 | AT&T Mobility | Mobile carrier | 2026 |
| 302-828 | Teleport Communications America | Internet / business phone carrier | – |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.